Spark-arrester.



PATENTED OCT. 10, 1905.

0. L. ANDERSON. SPARK ARRESTER.

APPLICATION FILED MAB.3,1905.

Inventor UZZUGILZ.AZZ@FJO Attorneys OLIVER LACY ANDERSON, OF DALLAS,TEXAS.

SPARK-ARRESTER.

Specification of Letters Patent.

Patented Oct. 10, 1905.

Application filed March 3, 1905. Serial No. 248,254.

1'0 to whom, it may concern:

Be it known that I, OLIVER LAoY ANDER- SON, a citizen of the UnitedStates, residing at Dallas, in the county of Dallas and State of Texas,have invented a new and usefulSpark- Arrester, of which the following isa specification.

This invention relates to spark-arresters; and it has for its object tosimplify and improve the construction and operation of this class ofdevices.

\Vith these and other ends in view, which will readily appear as thenature of the invention is better understood, the same consists in theimproved construction and novel arrangement and combination of parts,which will be hereinafter fully described, and particularly pointed outin the claims.

In the accompanying drawings has been illustrated a simple and preferredform of embodiment of the invention, it being, however, understood thatno limitation is necessarily made to the precise structural detailstherein exhibited, but that the right is reserved to any changes,alterations, and modifications to which recourse may be had within thescope of the invention and without departing from the spirit orsacrificing the efficiency of the same.

In said drawings, Figure l is a vertical sectional view showing aspark-arrester constructed in accordance with the principles of theinvention mounted for operation in a stovepipe or other smoke-conductor.2 is a perspective view showing the spark-arrester detached. Fig. 3 is asectional view taken on the plane indicated by the line 2 2 in Fig. 1.

Corresponding parts in the several figures are indicated throughout bysimilar characters of reference.

The improved spark-arrester of the present invention is composed of twoprincipal parts or side members 1 1, which are connected with each otherby means of a resilient connecting member 2, which also forms animportant operative part of the device, as will be presently explained.

Each of the side members is composed of a pair of vertical parallel bars3 3, which are connected near their upper ends by means of segmentalplates 4 4, said segmental plates being provided at their inner straightedges with downturned flanges 5. The segmental plates 4 are alsoprovided with downturned Fig.

of the device are connected by means of an inverted-V-shaped plate,whichconstitutes the connecting member 2 hereinbefore referred to and whichis provided with lugs 11 for the reception of rivets or bolts or otherconnecting members (indicated at 12) and which, if desired, may be of anature to establish pivotal connection between the side members 1 andthe connecting member 2. The said connecting member 2 is made ofresilient material, its tendency being to spring the side members 1 1apart from each other.

The device in practice will be made of proper dimensions to fit theparticular pipe, flue, or stack in which it is to be mounted foroperation, it being requisite, however, that the side members 1 1 whenin position shall be spaced apart, as clearly shown in Fig. 1 of thedrawings, and that the members 4 and 8 shall fit snugly against theinner wall of the pipe, flue, or stack, as the case may be. Products ofcombustion as they rise through the stack will be deflected toward themiddle of the stack by the deflectors 8, which obviously occupy anupwardly and inwardly inclined position. The products of combustion willthus be directed against the under side of the inverted-V-shapedconnecting-plate, which constitutes a sparkarresting medium and at thesame time serves to deflect the products of combustion in the directionof the sides of the stack, where they rise until intercepted by thedeflecting members 4, having the downturned flanges 5. Sparks, cinders,and unconsumed particles of fuel intercepted by the deflectors 2 and4will gravitate mainly onto the upper surfaces of the plates 8, escapingthrough the openings or recesses at the lower edges of said plates backinto the stove or furnace or into some receptacle provided for thepurpose. The

device will be retained securely in operative position by the resiliencyinherent in the connecting member 2, whereby the side members will beforced into frictional contact with the wall or stack. If the connectionbetween the members 1 and 2 is a pivotal one, the said members 1 will beself-adjusted-that is, their upper and lower ends will be forced equallyinto engagement with the pipe or stack.

Having thus described my invention, what is claimed is- 1. Aspark-arrester comprising side members having deflecting andintercepting means, and a resilient connecting member.

2. A spark-arrester comprising side mem bers having deflecting andintercepting means, and a resilient connecting device constitutingdeflecting and intercepting means.

3. In aspark-arrester, a pair of side members including ellipticaldeflecting-plates, segmental intercepting-plates, and connecting andspacing means for said plates, in combination with an inverted-V-shapedresilient connecting member.

4. In a spark-arrester, a pair of side members including ellipticaldeflecting-plates, segmental intercepting-plates, and connecting andspacing bars for said plates, in combination with an inverted-\I-shapedresilient connecting member pivotally connected with the connecting-bars of the side members.

5. In a spark-arrester,,two side members each provided with an inclineddeflecting-plate and an approximately horizontal interceptingplatehaving a downturned flange; said deflecting and intercepting platesbeing spaced apart and connected by approximately vertical bars; incombination with an inverted-\I-shaped resilient member pivotallyconnected with the side members and spacing the latter apart.

6. In a spark-arrester, a pair of side members each provided with aninclined deflectingplate having a recess at its lower edge, and anapproximately horizontal intercepting-plate having a downturned flange;said deflecting and intercepting plates being adapted to the contour ofapipe, stack or chimney and said plates being spaced apart and connectedby approximately vertical bars; in combination with aninverted-\l-shaped resilient member connected with the side members andspacing the latter apart.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

OLIVER LACY ANDERSON.

WVitnesses:

J. J. KELLAM, S. H. STOUGHTON.

